The Study on the Design of Low voltage AC Contactor in the Electrical System and the Control Applications

Abstract

The contactor is a kind of main circuit used to frequent connected and cut off and the large capacity control electronics, due to the AC and DC main circuit quickly cut off, and it can frequent switch the large current control circuit, so often be used to control motor, still can be used for machine tools, factory equipment and other electric power load control. Low voltage AC contactor is mainly used for on-off power electric equipment, can remote control the power devices, power on and off equipment to avoid personal injury. The low voltage AC contactor is mainly used for on-off power electric equipment, can remote control the power device, when the on and off equipment the power supply to avoid personal injury. The selection of AC contactor for the normal operation of the power equipment and power lines is Very important. This article puts forward the electrical design process when choosing low voltage AC contactor need to consider the main factors.